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3 years ago

누구든지 나를 도울 수 있을까요?

Mathematics

1 answer:

yKpoI14uk [10]3 years ago

4 0

Answer:

The expanded form of 1.2*10^9 is 1400000000

I'm not very sure what you mean but I have found two solutions.

Solution No.1:

1400000000 - 7000 = 1399993000

Solution No.2:

Let's say the variable is "x"

7000 * x = 1400000000

x = 200000

Hope this helped! :)

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What is the sum of the first 30 terms of this arithmetic sequence? 6,13,20,27,34

Galina-37 [17]

Answer:

3135

Step-by-step explanation:

Givens

a1 = 6

Use t4 - t3 to get d

t4 = 27

t3 = 20

Step One

Find a1 and d

a1 = 6

d = t4 - t3

d = 27 - 20

d = 7

Step Two

Find the 30th Term

tn= a1 + (n -1 )*d

t30 = 6 + (30 - 1) * 7

t30 = 6 + 29*7

t30 = 6 + 203

t30 = 209

Step Three

Find the sum using Sum = (a + t30)*n/2

n = 30 given

a1 = 6 given

t30 = 209 calculated from step 2

Sum = (a1 + t30)*n/2 Substitute

Sum = (6+ 209)*30/2 Combine like terms and divide by 2

sum = 215 * 15 Multiply

Sum = 3135 Answer

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3 years ago

For the graph y = -8 find the slope of a line that is perpendicular to it and the slope of a line parallel to it. Explain your a

AlexFokin [52]

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Pavel [41]

Answer:

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Step-by-step explanation:

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3 years ago

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Vilka [71]

Answer:

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Step-by-step explanation:

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3 years ago

Bailey just ran four miles outside. Her time for each mile was 9.05 / 8.24 / 10 / 9.22. How long did it take for her to run all

larisa86 [58]

Answer:

36.51

Step-by-step explanation:

If Bailey ran four miles, then the time that is given for each of her miles should be added together to find out her total time.

9.05 + 8.24 + 10 + 9.22

You can break it down into chunks to make it easier for you:

9.05 + 8.24

= 17.29

___________

9.22 + 10

= 19.22

_________________________________________________

Then you can just add both values together to find out the total

_________________________________________________

17.29 + 19.22 = 36.51

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4 years ago